package com.plug.common.utils;

import javax.servlet.http.HttpServletRequest;

/**
 * @author Winton
 * @version V 1.0
 * @project com.brtbeacon.pm.common.utils
 * @className ${methodName}
 * @desc
 * @date 2016/3/31
 */
public class IpUtils {

    public static String getIpAddress(HttpServletRequest request) {
        String ip = request.getHeader("x-forwarded-for");
        if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }
        return ip;
    }

}
